package main

func main() {
	e := Employee{
		firstName:      "John",
		lastName:       "Doe",
		salary:         1000,
		employeeNumber: 10001,
		hired:          false,
	}
	e.display()

	e.promote(100)
	e.display()

	e.hire()
	e.display()

	e.fire()
	e.display()
}
